An illuminated Check Engine Light could indicate that one or more of the ignition coils has failed due to excessive spark plug gap. To fix this problem, the ignition coils that have failed, the spark plugs, and all coil boots should be replaced.
Resources for the Repair and Maintenance of your 2009 Ford Expedition
2009 Ford Expedition
2009 Ford Expedition Problems
2009 Ford Expedition Recalls (Recent)
RepairPal Expert Overview:
Ford has recalled certain 2009 Expedition and Lincoln Navigator vehicles because the brake light switch may be improperly adjusted. The brake lights may fail to light up, which increases the risk of a crash. Dealers will adjust the brake light switch to the proper position.
2009 Ford Expedition Questions and Answers
While under heavy acceleration at about 30-40MPH there is a distinct poping sound eminating from the dash. It sounds like a vacuum valve closing. It has been back to the dealer 3X's and they h...
i have detewrmained my compressor has failed i want to change it but i also want to change accumulator